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Posted to issues@flink.apache.org by "Kurt Young (Jira)" <ji...@apache.org> on 2019/12/03 02:35:00 UTC

[jira] [Assigned] (FLINK-14962) FindBugs warnings: Inefficient use of keySet iterator instead of entrySet iterator

     [ https://issues.apache.org/jira/browse/FLINK-14962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kurt Young reassigned FLINK-14962:
----------------------------------

    Assignee: Dezhi Cai

> FindBugs warnings: Inefficient use of keySet iterator instead of entrySet iterator
> ----------------------------------------------------------------------------------
>
>                 Key: FLINK-14962
>                 URL: https://issues.apache.org/jira/browse/FLINK-14962
>             Project: Flink
>          Issue Type: Bug
>          Components: Connectors / Common, Formats (JSON, Avro, Parquet, ORC, SequenceFile)
>    Affects Versions: 1.8.0, 1.9.0, 1.9.1
>            Reporter: Dezhi Cai
>            Assignee: Dezhi Cai
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> FindBugs report WMI_WRONG_MAP_ITERATOR warnings on master.
> related class : 
> org.apache.flink.formats.parquet.ParquetMapInputFormat
> org.apache.flink.graph.library.CommunityDetection
> org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink (already marked as "Deprecated")
>  
> The description of the bug is as follows:
> *WMI: Inefficient use of keySet iterator instead of entrySet iterator (WMI_WRONG_MAP_ITERATOR)*
>  This method accesses the value of a Map entry, using a key that was retrieved from a keySet iterator. It is more efficient to use an iterator on the entrySet of the map, to avoid the Map.get(key) lookup.
>  [http://findbugs.sourceforge.net/bugDescriptions.html#WMI_WRONG_MAP_ITERATOR]



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